//
//  NSString+JZNExtension.h
//  Exam
//
//  Created by AlexLee on 6/7/14.
//  Copyright (c) 2014 Changzhou Jinzhineng Software Co., Ltd. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface NSString(JZNExtension)

+ (BOOL)stringIsEmpty:(NSString *)aString;

+ (BOOL)stringIsNoEmpty:(NSString *)aString;

- (NSString *)MD5;

@end
